【力扣·每日一题】383. 赎金信 (模拟)

class Solution {
public:
    bool canConstruct(string ransomNote, string magazine) {
        int mp[27];
        memset(mp,0,sizeof mp);
        bool flag=true;
        for(int i=0;magazine[i];i++) mp[magazine[i]-'a']++;
        for(int i=0;ransomNote[i];i++){
            if(mp[ransomNote[i]-'a']<=0){
                return false;
            }
            mp[ransomNote[i]-'a']--;
        }
        return true;
    }
};